diff --git a/circuit-construction-kit-black-box-study_en.html b/circuit-construction-kit-black-box-study_en.html
index 7d15466..5414f9b 100644
--- a/circuit-construction-kit-black-box-study_en.html
+++ b/circuit-construction-kit-black-box-study_en.html
@@ -12,8 +12,8 @@
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